The Italian-born sculptor Arturo Di Modica said the presence of the girl infringed on his own artistic copyright by changing the creative dynamic to include the other bold presence.

Attorney Norman Siegel told Di Modica would explain at a press conference on Wednesday exactly how hes challenging metropoli officials who issued a permit for the bronze girl to stay until February 2018. Siegel said he was demanding the city freeing records depicting what procedures were followed.

Artist Kristen Visbals figure was first placed on a traffic island near Wall Street on 7 March, on the eve of international womens period, to make a level: Theres a dearth of women on the boards of the most significant US corporations.

The young girl staring down the huge policeman with hands planted on her hips rapidly became a tourist magnet, outlining global attention on social media as guests posed for illustrations. In response to petitions with dozens of thousands of signatures for the statue to stay longer, mayor Bill de Blasio announced the city permit would be extended for nearly one year.

Di Modica called the statue an advertising trick created by two corporate giants State Street Global Advisors, the Boston-based investment giant, and McCann, its New York advertising firm.

A spokeswoman for the mayor did not immediately respond to a request for comment.

There was a time when Accusing Bull was in a position similar to the Fearless Girl waiting for the city to allow the part to stay.

Di Modica had installed the massive bronze in front of the New york stock exchange after the 1987 stock exchange crash, without a permit in the middle of the night, as a emblem of Americas financial resilience. The metropoli eventually responded to the public clamoring for the artwork to be allowed to remain in financing of the district, stairs from Wall Street.

Siegel, the former director of the New York Civil Liberties Union who is handling the instance with attorney Steven Hyman, said the sculptor approached him about 10 days ago.

A lawsuit has not been filed, told Siegel, who declined to say whether or when that were likely to happen.